12541211247 has 32 divisors (see below), whose sum is σ = 17245324800. Its totient is φ = 8103888000.

The previous prime is 12541211233. The next prime is 12541211279. The reversal of 12541211247 is 74211214521.

It is not a de Polignac number, because 12541211247 - 2⁶ = 12541211183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541211227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3570222 + ... + 3573732.

It is an arithmetic number, because the mean of its divisors is an integer number (538916400).

Almost surely, 2^12541211247 is an apocalyptic number.

12541211247 is a deficient number, since it is larger than the sum of its proper divisors (4704113553).

12541211247 is a wasteful number, since it uses less digits than its factorization.

12541211247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855.

The product of its digits is 4480, while the sum is 30.

Adding to 12541211247 its reverse (74211214521), we get a palindrome (86752425768).

The spelling of 12541211247 in words is "twelve billion, five hundred forty-one million, two hundred eleven thousand, two hundred forty-seven".